Power Connectors; Dc Power Connector - Cisco IE-4000-4TC4G-E Hardware Installation Manual

Power Connectors

Figure 1-2
The configurable inactivity timeout reactivates the RJ-45 console port if the USB-mini console port is
activated, but no input activity occurs for a specified time period. When the USB-mini console port
deactivates due to a timeout, you can restore its operation by disconnecting and reconnecting the USB
cable. For information on using the CLI to configure the USB-mini console interface, see the switch
software guide.
Power Connectors

DC Power Connector

You connect the DC power to the switch through the front panel connectors. The switch has a dual-feed
DC power supply; two connectors provide primary and secondary DC power (DC-A and DC-B). The DC
power connectors are near the top right of the front panel. See
LED status indicator.
The switch power connectors are attached to the switch chassis. Each power connector has screw
terminals for terminating the DC power. All connectors are attached to the switch front panel with the
provided captive screws.
The power connector labeling is on the panel. The positive DC power connection is labeled "+", and the
return connection is labeled "–".
The switch can operate with a single power source or with dual power sources. When both power sources
are operational, the switch draws power from the DC source with the higher voltage. If one of the two
power sources fail, the other continues to power the switch.
Cisco IE 4000 Switch Hardware Installation Guide
1-6
USB Mini-Type B Port
Chapter 1
Figure 1-1. Each power connector has an
Cisco IE 4000 Switch Hardware Installation Guide
Product Overview